LOS ANGELES, Calif. (KERO) — Los Angeles, the second most populous U.S. city, is weighing whether to ban new oil and gas drilling and phase out hundreds of existing wells.

The city council is expected to vote on a measure that would shut down oil and gas fields in the city after a decade of complaints from residents.

Residents began lobbying local, state and federal politicians to more closely regulate drilling after years of negative health impacts they blamed on air pollution from the sites.